scott brown is not running and now geraldo rivera may be geraldo? >>> plus, george bush's brain is much, much bigger than the meltdown on fox news. america is changing. the president knows it, but republicans don't. >>> and my thoughts of ed koch passing, my friend and political opponent for decades. you're watching "politics nation" on msnbc. [ male announcer ] you are a business pro. omnipotent of opportunity. you know how to mix business... with business. and you...rent from national. because only national lets you choose any car in the aisle. and go. you can even take a full-size or above. and still pay the mid-size price. i could get used to this. [ male announcer ] yes, you could business pro. yes, you could. go national. go like a pro. [ male announcer ] the rhythm of life. [ whistle blowing ] where do you hear that beat? campbell's healthy request soup lets you hear it... in your heart. [ basketball bouncing ] heart healthy. great taste. mmm... [ male announcer ] sounds good. it's amazing what soup can do. >>> have you joined the politics na